#root{display:contents}:root{--primary:#86efac;--primary-dark:#166534;--secondary:#facc15;--accent:#fb7185;--danger:#ef4444;--success:#16a34a;--surface:#fbfffce6;--surface-strong:#fff;--surface-soft:#f4fff5b8;--border-soft:#ffffff80;--text-main:#10261a;--text-muted:#4b6354;--text-soft:#6d8476;--bg-gradient:radial-gradient(circle at top left, #4ade8061, transparent 30%), linear-gradient(145deg, #0b2f1b 0%, #126936 52%, #1f9d4c 100%);--shadow-lg:0 28px 80px #041a0e52;--shadow-md:0 16px 34px #10261a1f;--shadow-sm:0 10px 24px #10261a14}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{min-height:100%}body{background:var(--bg-gradient);min-height:100vh;color:var(--text-main);background-attachment:fixed;justify-content:center;align-items:center;margin:0;padding:16px;font-family:Pretendard,Apple SD Gothic Neo,Noto Sans KR,sans-serif;display:flex;overflow-x:hidden}body:before,body:after{content:"";filter:blur(80px);pointer-events:none;z-index:0;border-radius:999px;position:fixed}body:before{background:#facc1533;width:280px;height:280px;top:-80px;left:-60px}body:after{background:#86efac33;width:340px;height:340px;bottom:-110px;right:-90px}.app-layout{align-items:stretch;gap:16px;width:min(100%,1400px);margin:auto;transition:all .3s cubic-bezier(.16,1,.3,1);display:flex}.level-dashboard{-webkit-backdrop-filter:blur(24px);background:linear-gradient(135deg,#fffffffa 0%,#ecfdf5f7 100%);border:1px solid #86efac80;border-radius:44px;flex-direction:column;flex:0 0 280px;align-self:stretch;padding:32px;animation:.4s cubic-bezier(.16,1,.3,1) slideInRight,6s ease-in-out infinite pulseGlow;display:flex;position:relative;overflow:hidden;box-shadow:0 24px 60px #16a34a26,inset 0 2px 20px #fffc}.level-dashboard:before{content:"";pointer-events:none;border-radius:inherit;background:radial-gradient(circle at 100% 0,#facc1540 0%,#0000 50%),radial-gradient(circle at 0 100%,#86efac40 0%,#0000 50%);position:absolute;inset:0}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes pulseGlow{0%,to{border-color:#86efac80;box-shadow:0 24px 60px #16a34a26,inset 0 2px 20px #fffc}50%{border-color:#22c55ecc;box-shadow:0 24px 75px #16a34a47,inset 0 2px 20px #ffffffe6,0 0 20px #86efac59}}.dashboard-inner{z-index:1;flex-direction:column;height:100%;display:flex;position:relative}.dashboard-header{justify-content:space-between;align-items:center;margin-bottom:24px;display:flex}.header-title-wrap{align-items:center;gap:12px;display:flex}.info-btn{color:#15803d;cursor:pointer;background:#16a34a1a;border:none;border-radius:10px;justify-content:center;align-items:center;width:32px;height:32px;font-size:1.1rem;transition:all .2s;display:flex}.info-btn:hover{background:#16a34a33;transform:scale(1.05)}.modal-overlay{-webkit-backdrop-filter:blur(4px);z-index:1000;opacity:0;background:#0006;justify-content:center;align-items:center;transition:opacity .3s;display:none;position:fixed;inset:0}.modal-overlay.show{opacity:1;display:flex}.modal-content{background:linear-gradient(135deg,#fffffffa,#f7fff9f2);border:1px solid #86efac80;border-radius:32px;width:90%;max-width:500px;padding:36px 40px;transition:transform .3s cubic-bezier(.16,1,.3,1);position:relative;transform:translateY(20px);box-shadow:0 30px 70px #00000026}.modal-overlay.show .modal-content{transform:translateY(0)}.modal-close{color:#6d8476;cursor:pointer;background:0 0;border:none;font-size:2rem;line-height:1;transition:color .2s;position:absolute;top:24px;right:24px}.modal-close:hover{color:#10261a}.modal-title{color:#10261a;margin:0 0 12px;font-size:1.6rem;font-weight:900}.modal-desc{color:#4b6354;margin-bottom:24px;font-size:.95rem;line-height:1.5}.modal-desc strong{color:#15803d}.level-table{border-collapse:separate;border-spacing:0 8px;width:100%}.level-table th{text-align:left;color:#6d8476;border-bottom:1px solid #16a34a33;padding:0 12px 8px;font-size:.85rem;font-weight:700}.level-table td{color:#10261a;background:#fff9;padding:12px;font-size:.95rem;font-weight:700}.level-table tr td:first-child{border-top-left-radius:12px;border-bottom-left-radius:12px}.level-table tr td:last-child{color:#15803d;border-top-right-radius:12px;border-bottom-right-radius:12px;font-weight:800}.lv-badge{color:#fff;border-radius:8px;padding:4px 10px;font-size:.8rem;font-weight:900;display:inline-block}.lv1{background:#9ca3af}.lv2{background:#60a5fa}.lv3{background:#f59e0b}.lv4{background:#ef4444}.lv5{color:#064e3b;background:linear-gradient(135deg,#10b981,#facc15)}.dashboard-icon{font-size:1.8rem;animation:3s ease-in-out infinite dashboardFloat;display:inline-block}@keyframes dashboardFloat{0%,to{transform:translateY(0)rotate(0)}50%{transform:translateY(-4px)rotate(5deg)}}.dashboard-title{color:var(--text-main);margin:0;font-size:1.4rem;font-weight:900}.dashboard-content{text-align:center;background:linear-gradient(135deg,#ecfdf5f2 0%,#fef3c7bf 100%);border:1.5px solid #16a34a40;border-radius:28px;flex-direction:column;flex:1;justify-content:center;align-items:center;padding:28px 24px;display:flex;box-shadow:inset 0 4px 18px #16a34a0a,inset 0 1px #fff9}.level-badge-large{background:linear-gradient(135deg,#15803d 0%,#10b981 50%,#eab308 100%);-webkit-text-fill-color:transparent;filter:drop-shadow(0 4px 10px #16a34a40);-webkit-background-clip:text;margin-bottom:8px;font-size:3.4rem;font-weight:900;line-height:1}.level-desc{color:var(--text-muted);margin:0 0 24px;font-size:1rem;font-weight:700}.progress-wrap{width:100%;position:relative}.progress-bar{background:#0000000d;border-radius:999px;width:100%;height:14px;margin-bottom:12px;overflow:hidden;box-shadow:inset 0 1px 4px #00000014}.progress-fill{background:linear-gradient(90deg, var(--secondary), var(--success), var(--secondary));background-size:200% 100%;border-radius:999px;height:100%;animation:3s linear infinite progressShine}@keyframes progressShine{0%{background-position:100% 0}to{background-position:-100% 0}}.progress-text{color:var(--text-soft);font-size:.9rem;font-weight:800}.xp-plus-one{color:var(--success);pointer-events:none;z-index:10;font-size:1.2rem;font-weight:900;animation:1s cubic-bezier(.16,1,.3,1) forwards floatUpFade;position:absolute;top:-24px;left:50%}@keyframes floatUpFade{0%{opacity:0;transform:translate(-50%,10px)scale(.8)}20%{opacity:1;transform:translate(-50%)scale(1.1)}to{opacity:0;transform:translate(-50%,-30px)scale(1)}}.container{border:1px solid var(--border-soft);min-width:0;max-width:1120px;box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(24px);z-index:1;text-align:left;background:linear-gradient(#fffffff5 0%,#f7fff9f0 100%);border-radius:44px;flex:1;padding:24px 32px 32px;position:relative}.container:before{content:"";pointer-events:none;border-radius:inherit;background:radial-gradient(circle at 100% 0,#86efac4d,#0000 35%),radial-gradient(circle at 0 100%,#facc152e,#0000 30%);position:absolute;inset:0}.back-btn{z-index:3;color:#f8fff8;cursor:pointer;opacity:0;pointer-events:none;background:#10261ae6;border-radius:12px;justify-content:center;align-items:center;height:40px;padding:0 18px;font-size:.88rem;font-weight:700;transition:all .3s cubic-bezier(.16,1,.3,1);display:inline-flex;position:absolute;top:24px;right:32px;transform:translateY(-4px)}.back-btn.visible{opacity:1;pointer-events:auto;transform:translateY(0)}.back-btn:hover{background:#000;transform:translateY(-2px);box-shadow:0 6px 15px #00000026}.header-area{z-index:1;cursor:pointer;align-items:center;gap:28px;margin-bottom:32px;padding:16px 0 0;display:flex;position:relative}.brand-mark{background:linear-gradient(145deg,#facc15 0%,#86efac 100%);border-radius:32px;flex:0 0 110px;justify-content:center;align-items:center;width:110px;height:110px;font-size:3.5rem;animation:3s ease-in-out infinite floating;display:flex;box-shadow:inset 0 1px #fff9,0 20px 40px #16653426}@keyframes floating{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.main-title{letter-spacing:-.06em;color:var(--text-main);margin:0;font-size:2.8rem;font-weight:900;line-height:1}.brand-subtitle,.section-description{color:var(--text-muted);max-width:600px;margin:10px 0 0;font-size:1rem;line-height:1.6}.brand-kicker,.section-kicker{letter-spacing:.2em;text-transform:uppercase;color:#059669;margin:0 0 8px;font-size:.75rem;font-weight:800}.view{z-index:1;animation:.5s cubic-bezier(.16,1,.3,1) slideUp;display:none;position:relative}.view.active{display:block}#home-view.active,#level-view.active{grid-template-columns:340px 1fr;align-items:stretch;gap:40px;display:grid}.section-title,.selected-category,.result-title{color:var(--text-main);margin:0;font-size:2rem;font-weight:900;line-height:1.2}.grid-layout{grid-template-columns:repeat(2,1fr);gap:16px;display:grid}@media (width>=1200px){.grid-layout{grid-template-columns:repeat(3,1fr)}}button{cursor:pointer;border:0;outline:none;transition:all .3s cubic-bezier(.16,1,.3,1)}.btn-select{text-align:left;background:#fff;border:1px solid #16653414;border-radius:28px;flex-direction:column;justify-content:space-between;align-items:flex-start;gap:12px;min-height:150px;padding:22px;display:flex;box-shadow:0 4px 20px #00000008}.btn-select:hover{border-color:#16a34a4d;transform:translateY(-6px);box-shadow:0 20px 40px #10261a1a}.select-emoji{background:#16a34a1a;border-radius:18px;justify-content:center;align-items:center;width:50px;height:50px;font-size:1.6rem;transition:transform .3s;display:inline-flex}.btn-select:hover .select-emoji{transform:scale(1.1)rotate(-5deg)}.select-title{color:var(--text-main);font-size:1.1rem;font-weight:800;display:block}.select-meta{color:var(--text-soft);font-size:.85rem;font-weight:600;display:block}.level-column{grid-template-columns:1fr;gap:12px;display:grid}.btn-bar{text-align:left;background:#fff;border:1px solid #16653414;border-radius:24px;align-items:center;gap:16px;width:100%;padding:18px 22px;display:flex}.btn-bar:hover{transform:translateY(-3px);box-shadow:0 12px 25px #10261a14}.level-badge{background:#10261a0d;border-radius:18px;flex:0 0 54px;justify-content:center;align-items:center;width:54px;height:54px;font-size:1rem;font-weight:900;transition:all .3s;display:inline-flex}.btn-bar:hover .level-badge{transform:scale(1.05)}.frequent-review-cta{color:#fff;text-align:left;background:linear-gradient(135deg,#7f1d1d 0%,#dc2626 58%,#fb7185 100%);border:0;border-radius:28px;flex-direction:column;justify-content:space-between;align-items:flex-start;gap:24px;width:100%;min-height:255px;margin-top:24px;padding:24px;display:flex;position:relative;overflow:hidden;box-shadow:0 20px 42px #7f1d1d3d}.frequent-review-cta:after{content:"";pointer-events:none;background:#ffffff29;border-radius:999px;width:150px;height:150px;position:absolute;bottom:-54px;right:-44px}.frequent-review-cta:hover{transform:translateY(-4px);box-shadow:0 26px 48px #7f1d1d52}.review-cta-icon{z-index:1;color:#fff;background:#ffffff2e;border-radius:22px;justify-content:center;align-items:center;width:62px;height:62px;font-size:1.1rem;font-weight:900;display:inline-flex;position:relative;box-shadow:inset 0 1px #ffffff47}.review-cta-copy{z-index:1;min-width:0;position:relative}.review-cta-copy strong,.review-cta-copy small{display:block}.review-cta-copy strong{font-size:1.3rem;font-weight:900;line-height:1.2}.review-cta-copy small{color:#ffffffd1;margin-top:10px;font-size:.9rem;font-weight:700;line-height:1.45}.level-all,.retry-btn{color:#fff;background:linear-gradient(135deg,#064e3b 0%,#10b981 100%);border:0}.level-all .level-badge{color:#fff;background:#fff3}.study-view.active{display:block}.study-layout{grid-template-columns:460px 1fr;align-items:stretch;gap:48px;display:grid}.study-card-panel{position:relative}.study-side-panel{flex-direction:column;gap:24px;display:flex}.card{perspective:1500px;width:100%;max-width:420px;min-height:520px;margin:0 auto}.card-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .75s cubic-bezier(.34,1.56,.64,1);display:grid;position:relative}.card.flipped .card-inner{transform:rotateY(180deg)}.card-front,.card-back{backface-visibility:hidden;box-shadow:var(--shadow-md);border:1px solid #1665341a;border-radius:32px;flex-direction:column;grid-area:1/1;justify-content:center;align-items:center;padding:24px;display:flex}.card-front{background:linear-gradient(160deg,#fff 0%,#f2fff3 100%)}.card-back{background:linear-gradient(160deg,#fff 0%,#ecfff0 70%,#dcfce7 100%);transform:rotateY(180deg)}.card.konglish-revealed.flipped .card-back{background:linear-gradient(160deg,#fff 0%,#fffaf0 62%,#ecfdf5 100%);border-color:#f59e0b85;box-shadow:0 22px 48px #b453092e}.card-image-container{text-align:center;background-color:#f8fafc;border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:100%;max-height:200px;margin-top:16px;margin-bottom:16px;display:flex;overflow:hidden}#card-image{object-fit:contain;border-radius:12px;max-width:100%;max-height:200px}.konglish-event{z-index:10;text-align:center;pointer-events:none;opacity:0;background:linear-gradient(#fff 0%,#fffdf7 100%);border:1px solid #d9770647;border-radius:20px;width:min(390px,100% - 20px);min-height:108px;padding:14px 18px 16px;position:absolute;bottom:calc(100% + 24px);left:50%;transform:translate(-50%,-14px)scale(.92);box-shadow:0 18px 34px #0f172a1f}.konglish-event.show{animation:3.6s both konglishPop}.konglish-event:before,.konglish-event:after{content:"";opacity:.76;background:repeating-linear-gradient(90deg,#f59e0b 0 10px,#16a34a 10px 20px,#0ea5e9 20px 30px);border-radius:999px;width:46px;height:10px;position:absolute;top:-12px}.konglish-event:before{left:24px;transform:rotate(-18deg)}.konglish-event:after{right:24px;transform:rotate(18deg)}.konglish-burst{color:#92400e;letter-spacing:0;text-transform:uppercase;background:#fef3c7;border-radius:999px;justify-content:center;align-items:center;min-height:28px;padding:0 12px;font-size:.78rem;font-weight:900;display:inline-flex}.konglish-title{color:#1f2937;margin-top:8px;font-size:1.08rem;font-weight:900}.konglish-correct{color:var(--text-main);margin-top:6px;font-size:.98rem;font-weight:800}.konglish-correct strong{color:#047857}.konglish-message{color:var(--text-muted);word-break:keep-all;margin-top:6px;font-size:.82rem;font-weight:700;line-height:1.4}@keyframes konglishPop{0%{opacity:0;transform:translate(-50%,-18px)scale(.88)rotate(-2deg)}10%{opacity:1;transform:translate(-50%)scale(1.04)rotate(1deg)}18%{transform:translate(-50%)scale(1)rotate(0)}78%{opacity:1;transform:translate(-50%)scale(1)}to{opacity:0;transform:translate(-50%,-10px)scale(.96)}}.word-text,.answer-word{color:var(--text-main);font-size:2.8rem;font-weight:900;line-height:1.1}.card-hint{color:var(--text-soft);margin-top:32px;font-size:.9rem;font-weight:700}.meaning-text{color:#14532d;text-align:center;background:#16a34a14;border-radius:16px;max-width:100%;margin-top:12px;padding:8px 14px;font-size:1.12rem;font-weight:850;line-height:1.35}.example-box{text-align:center;background:#ffffffd9;border:1px solid #16653414;border-radius:20px;flex-direction:column;align-items:center;gap:8px;width:100%;margin-top:16px;padding:16px;display:flex}.answer-head,.example-line{grid-template-columns:1fr auto 1fr;align-items:center;width:100%;display:grid}.answer-head>.answer-word,.example-line>span{text-align:center;grid-column:2}.answer-head>.tts-icon,.example-line>.example-audio{grid-column:3;justify-self:start;margin-left:12px}.example-translation{color:var(--text-soft);font-size:.95rem;font-weight:600}.tts-icon,.example-audio{color:#166534;background:#14532d14;border-radius:999px;justify-content:center;align-items:center;width:42px;height:42px;font-size:1.15rem;display:inline-flex}.tts-icon:hover,.example-audio:hover{background:#14532d1f;transform:scale(1.1)}.action-group{grid-template-columns:repeat(2,1fr);gap:16px;width:100%;display:grid}.action-group button{aspect-ratio:1;color:#fff;border-radius:28px;flex-direction:column;justify-content:center;align-items:center;gap:8px;font-size:1.3rem;font-weight:900;display:flex;box-shadow:0 10px 20px #0000001a}.btn-wrong{background:linear-gradient(135deg,#fb7185 0%,#ef4444 100%)}.btn-correct{background:linear-gradient(135deg,#22c55e 0%,#15803d 100%)}.btn-wrong:hover{transform:translateY(-4px)scale(1.02);box-shadow:0 15px 30px #ef44444d}.btn-correct:hover{transform:translateY(-4px)scale(1.02);box-shadow:0 15px 30px #15803d4d}.btn-wrong:active,.btn-correct:active{transform:scale(.96)}.stats-bar{flex:1;grid-template-columns:repeat(2,1fr);gap:16px;width:100%;display:grid}.stat-pill{box-shadow:var(--shadow-sm);background:#ffffffd9;border-radius:18px;justify-content:center;align-items:center;gap:8px;height:100%;padding:14px 18px;font-size:.95rem;font-weight:800;display:flex;position:relative;overflow:visible!important}.stat-emoji{pointer-events:none;z-index:100;opacity:0;font-size:2rem;animation:1s ease-out forwards floatUp;position:absolute;top:-10px;left:50%;transform:translate(-50%)}@keyframes floatUp{0%{opacity:0;transform:translate(-50%)translateY(0)scale(.5)}20%{opacity:1}to{opacity:0;transform:translate(-50%)translateY(-60px)scale(1.5)}}.stat-pill strong{font-size:1.15rem}.result-view.active{min-height:auto;display:block}.result-layout{text-align:center;grid-template-columns:1fr;gap:40px;max-width:600px;margin:0 auto;display:grid}.result-score-wrap{box-shadow:var(--shadow-md);text-align:center;background:#fff;border-radius:36px;order:-1;padding:32px}#result-score{background:linear-gradient(#16a34a 0%,#14532d 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;font-size:6rem;font-weight:900;line-height:1}.result-text{color:var(--text-muted);max-width:400px;margin:12px auto 28px;font-size:1.1rem;font-weight:700;line-height:1.6}.result-copy-panel .section-head{margin-bottom:24px}.section-description{color:var(--text-muted);max-width:600px;margin:10px auto 0;font-size:1rem;line-height:1.6}.retry-btn{justify-content:center;min-height:68px;font-size:1.15rem}.result-actions{flex-direction:column;gap:12px;display:flex}@keyframes slideUp{0%{opacity:0;transform:translateY(25px)}to{opacity:1;transform:translateY(0)}}@media (width<=900px){.container{padding:24px 28px 32px}#home-view.active,#level-view.active,.study-layout,.result-layout{grid-template-columns:1fr;gap:32px}.header-area{text-align:center;flex-direction:column;gap:20px;padding-top:32px}.brand-copy{text-align:center}.brand-subtitle,.section-description{margin-left:auto;margin-right:auto}.frequent-review-cta{flex-direction:row;align-items:center;max-width:420px;min-height:150px;margin-left:auto;margin-right:auto;padding:20px}.back-btn{top:20px;right:24px}}@media (width<=480px){body{padding:0 10px}.container{border-radius:36px;padding:16px 20px 24px}.brand-mark{width:90px;height:90px;font-size:2.8rem}.main-title{font-size:2.2rem}.grid-layout{grid-template-columns:1fr}.card{min-height:500px}#result-score{font-size:4.8rem}}#home-view .section-head{flex-direction:column;height:100%;display:flex}.sentence-builder-cta{cursor:pointer;-webkit-backdrop-filter:blur(16px);background:linear-gradient(135deg,#5b21b6 0%,#3b0764 100%);border:1px solid #a855f759;border-radius:24px;flex:1;align-items:center;gap:18px;margin-top:16px;margin-bottom:0;padding:32px 26px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;position:relative;overflow:hidden;box-shadow:0 8px 32px #5b21b626}.sentence-builder-cta:before,.sentence-builder-cta:after{content:"";pointer-events:none;z-index:1;opacity:.85;border-radius:43% 40% 45% 42%/40% 45% 42% 43%;width:600px;height:600px;position:absolute;left:-130px}.sentence-builder-cta:before{background:#a855f738;animation:14s linear infinite waveLiquid;bottom:-480px}.sentence-builder-cta:after{background:#818cf82e;border-radius:40% 45% 42% 43%/43% 40% 45% 42%;animation:9s linear infinite reverse waveLiquid;bottom:-495px}@keyframes waveLiquid{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.sentence-builder-cta:hover{background:linear-gradient(135deg,#6d28d9 0%,#4c1d95 100%);border-color:#a855f799;transform:translateY(-4px);box-shadow:0 12px 40px #6d28d94d}.sentence-builder-cta:hover:before{animation-duration:10s}.sentence-builder-cta:hover:after{animation-duration:6s}.sentence-builder-cta .cta-emoji,.sentence-builder-cta .cta-info,.sentence-builder-cta .cta-arrow{z-index:2;position:relative}.sentence-builder-cta .cta-emoji{filter:drop-shadow(0 4px 12px #a855f773);font-size:2.2rem;transition:transform .3s}.sentence-builder-cta:hover .cta-emoji{transform:scale(1.15)rotate(8deg)}.sentence-builder-cta .cta-info{text-align:left;flex-direction:column;flex-grow:1;gap:5px;display:flex}.sentence-builder-cta .cta-title{color:#fff;letter-spacing:-.02em;text-shadow:0 2px 4px #0003;font-size:1.15rem;font-weight:800}.sentence-builder-cta .cta-desc{color:#d8b4fed9;text-shadow:0 1px 2px #00000026;font-size:.85rem;line-height:1.45}.sentence-builder-cta .cta-arrow{color:#d8b4fe;font-size:1.3rem;transition:transform .3s cubic-bezier(.4,0,.2,1)}.sentence-builder-cta:hover .cta-arrow{transform:translate(6px)}.sentence-view{display:none}.sentence-view.active{border-top:1.5px solid #0000002e;display:block}.sentence-layout{grid-template-columns:1.25fr .75fr;align-items:stretch;gap:40px;margin-top:24px;display:grid}.sentence-question-panel{flex-direction:column;height:100%;display:flex}.sentence-target-box{box-sizing:border-box;background:#fff;border:1px solid #8b5cf626;border-radius:20px;flex-direction:column;justify-content:center;align-items:center;height:120px;margin-bottom:28px;padding:12px;display:flex;position:relative;box-shadow:0 10px 25px -5px #8b5cf61f,0 8px 16px -6px 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#8b5cf626;border-radius:18px;flex:none;width:100%;margin-bottom:12px;padding:14px 20px;font-size:1rem;font-weight:700;transition:all .2s}.btn-sentence-hint:hover{background:#8b5cf61f;border-color:#8b5cf64d;transform:translateY(-2px)}.word-chip{color:#2d3748;cursor:pointer;-webkit-user-select:none;user-select:none;background:#fff;border:1px solid #0000000f;border-radius:14px;justify-content:center;align-items:center;padding:10px 18px;font-size:.98rem;font-weight:700;transition:all .25s cubic-bezier(.4,0,.2,1);display:inline-flex;box-shadow:0 4px 8px #00000005,0 1px 3px #00000005}.word-chip:hover{color:#4f46e5;border-color:#6366f140;transform:translateY(-3px);box-shadow:0 8px 16px #6366f11f}.word-chip:active{transform:translateY(1px)}.sentence-slots .word-chip{color:#fff;background:linear-gradient(135deg,#6366f1 0%,#4f46e5 100%);border:none;box-shadow:0 4px 12px #6366f140}.sentence-slots .word-chip:hover{color:#fff;background:linear-gradient(135deg,#ef4444 0%,#dc2626 100%);transform:translateY(-2px);box-shadow:0 6px 16px #dc26264d}.word-chip.selected-hidden{display:none!important}.btn-sentence-submit{color:#fff;background:linear-gradient(135deg,#a855f7 0%,#7c3aed 100%);border:none;width:100%;font-size:1.05rem;font-weight:800;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:0 8px 24px #7c3aed40}.btn-sentence-submit:hover{transform:translateY(-3px);box-shadow:0 12px 32px #7c3aed66}@media (width<=900px){.sentence-layout{grid-template-columns:1fr;gap:32px}}@media (width<=480px){.sentence-builder-cta{margin-top:24px;margin-bottom:24px;padding:16px 20px}.sentence-builder-cta .cta-emoji{font-size:1.8rem}.sentence-builder-cta .cta-title{font-size:1.05rem}.sentence-builder-cta .cta-desc{font-size:.8rem}.sentence-slots{gap:8px;min-height:90px;padding:12px}.sentence-pool{gap:8px;min-height:100px}.word-chip{padding:8px 14px;font-size:.88rem}}#toast-container{z-index:10000;pointer-events:none;flex-direction:column;align-items:center;gap:12px;display:flex;position:fixed;top:40px;left:50%;transform:translate(-50%)}.custom-toast{-webkit-backdrop-filter:blur(12px);opacity:0;visibility:hidden;color:#1a202c;text-align:center;white-space:pre-wrap;pointer-events:auto;background:#fffffff2;border-radius:16px;min-width:280px;max-width:90vw;padding:16px 24px;font-size:1.05rem;font-weight:700;transition:all .4s cubic-bezier(.16,1,.3,1);transform:translateY(-20px);box-shadow:0 10px 40px #00000026,0 0 0 1px #0000000d}.custom-toast.show{opacity:1;visibility:visible;transform:translateY(0)}.custom-toast.success{border-bottom:4px solid #10b981}.custom-toast.error{border-bottom:4px solid #ef4444}.custom-toast.info{border-bottom:4px solid #3b82f6}